It's an amazing value. I love mine.

 

This.

Killer subs. Get more than one at that price.

And this, I'm tempted to grab another just as a spare.

I’ve heard you’re better off running two of these - and they need 1000 watts each right?

Anyone tried just one?

I have just one. It's in a sealed enclosure, about 1cf, on 500W. It's an awesome sub, more than loud enough. Nick usually laughs when we get together and I remind him it's only on 500W, tells me it'll handle way more power. I'd love to try it on more power, but that means new amplifiers, so 500W it gets.

If you're thinking of buying one, do it. You won't regret it.

 

Killer subs. Get more than one at that price.

 

these really function best in sealed boxes correct?

 

I’ve heard you’re better off running two of these - and they need 1000 watts each right?

Anyone tried just one?

Here's an enclosure I built for one. During an overnight vehicle rebuild and tune.

2.1ft^3 tuned to 22 Hz.

In-car SPL was 135 dB at 31 Hz on 276 Watts. At the head rest. MECA.

Even though the software showed a peak at about 23 Hz, that's anechoic. Here's in-vehicle response with no EQ. Just a 70 Hz LR4.

It did well.

 

How are you getting 5% cash back? I only get 5% back with my Amazon card at Amazon and Whole foods. I’m always looking for a credit card with high cash back for other places..

 

Discover and Chase Freedom Flex changes their quarterly cashback quarterly. I think my Freedom Flex is offering 5% cashback this quarter for PayPal.

 

I’ve heard you’re better off running two of these - and they need 1000 watts each right?

Anyone tried just one?

 

That tends to come from just one person here, and while he is very knowledgeable, i think he is a bit overzealous with his power recommendations

 

I have one in a sealed enclosure being poweredby an ARC audio xdi 1100.1 in my truck and have zero complaints. I'm not an spl guy, but I will turn it up from time to time and it will absolutely pound. It sounds great at low levels and high. I can't imagine "needing" two.

 

I have that exact same amp. How large is your sealed enclosure?

 

Mine is tiny. I had to squeeze it in behind my rear seat in a mega cab. I believe I was roughly .65 cu feet net. This was a test fit with the bracket to make sure it lined up properly, it isn't visible anymore.

 

I bought 2 of them the last time the went on sale for $280. Currently awaiting a custom ported box for them

 

How would these do in a music room or home theater application? 15" vs. 12" for home use?

 

I bought a SQL12 a couple of weeks ago, not on sale. I was hoping to put it in my existing box, but it's just too big, which has me redesigning my whole substage.

I like a stealth install, so I thought spare tire is out, sub is in. I also though, "hey, I have multiple cars that will need a system, lets use the 12" in a different car and get a 15" to maximize the space that I have available."

When modeling it though, the 15" really doesn't model that differently in TFM, and SPL in winISD it models as 10db quieter at the same power level, despite the higher sensitivity. Any thoughts?

Does anybody have any experience with the 12" vs the 15"?

 

Well that escalated quickly. Two SQL-12's inbound.

 

To the OP - I have one in a sealed enclosure on a Taramps Smart 3K (SQL12 handles the full output of this amp without strain daily - it dyno'd at 3K RMS but I will be the first to say that this kind of 3kW RMS and a True SQ amp that can do 10kW transients when rated for 3kW RMS are two ENTIRELY different animals) and it started in 1 cuft net then 0.85 and then 0.7 as testing proceeded to see where I got the best blend with my Morel 6x9 front doors. The 0.7 net ended up the best at the time but I've since gone back to 0.85 as I prefer the lowest octave output in this configuration the best once it's been broken in... it will seriously overpower my front stage when turned up and it stays at about 55-60% output most of the time for SQ. It is rated for 1kW RMS and if you get 2 and put them on a "surfboard" 2kW amp (Sundown SALT as an example) and still need more than that then you're a true (meant in the best way possible) Basshead!

My Single Sealed can make the mirrors pretty useless in a Grand Cherokee and cause the rear flipper glass in the liftgate to flutter.

As for the 12 vs 15 debate - I've installed and tuned both and the 15 takes even more power and is only really necessary if you're trying to build a stoplight bandit and set people's alarms off. They need much more enclosure than the 12 and because of the way the motor force is designed only pass the 12s after you get to maximum excursion on the 12s and the cone area of the 15s takes over. The 12 goes so low so easily the 15 is really only needed if you're pursuing that infrasonic output in home theater.

Versus Adire Brahma - the Brahma is more efficient and gets louder quicker with very similar output and tonality but eventually runs out of excursion before the SQL so the SQL has more potential for absolute output if you're willing to push HUGE power levels. If you're running stock electrical and "normal" power levels then the Brahma is probably the better, if more expensive choice. I've yet to have anyone I've suggested the SQL12 for have any complaints (other than their weight) even at the regular price.

If I could get past the WAF I'd have two of them in a 20-24Hz Ported Enclosure on a 1/2 Bridge Surfboard - but the full stealth install is possibly more impressive.

 

Nice. Thanks for the input on comparing it to the Brahma. Man that's a tough choice between the two. I'll probably end up getting both further down along the road and keeping my favorite, but thatd be much further down. I've really been itching to try a Dayton HO 18 also.

 

I had the 18HO for home theater and in 4 cubes it blended perfect, but lacked low end. I swapped it for the Stereo integrity 18HT mark 1 and it was night and day. If you're considering an 18, I'd grab an SI 18 for $189 now. More sub for the money compared to the Dayton imo.

 

The pre order price on those is just silly. I cant believe they are selling it for that cheap! under $200 for an absolute monster

 

its a good time to try a pair. Must resist.

 

Hmm I have a pretty slim 2cu ft ported box for my jl 12w3v3 tuned for 32hz. I'd have to add a new 3/4 birch panel to the front of my box fit the SI sql mounting depth but it's tempting

 

I can't imagine any way of regretting that decision, unless you've never been close to reaching the limits of the W3, then it might be moot.

 

ditto. i saw a video of the 15" SQL version playing short burst (~10 sec) with ~10,000 W being applied to it on youtube. man oh man! talk about "L" geesh!

 

Derrick sent 24,588W to a pair of SQL15s in Project SPL.

 

In 4 cubes sealed in a small room it goes much lower than the HO. Like rattles my dishes in the kitchen lower. I never pulled out a mic to see but my 20 son heard the difference first movie I put on. He was like dad wtf did you do? Lol. And yes it would be good in a vehicle.

 

Hmmm that sounds very intriguing! That might just be the puppy I'm looking for.

 

My HT-18 is in 4 cubes. 19 isn't necessary

 

It modeled nicely at .7 cu ft. net with that power level. It's why I decided to cram one in the back of my Ram.

 

That small size sounds so tempting. It almost sounds too good to be true.

 

Yeah, it's pretty impressive what it can do with such a small enclosure!

 

Just for an idea how much I had to shoehorn the SQL-12 into a tiny enclosure...had to clear the magnet.

 

Ok so I know the SQL-12 dropped in price for this sale.. I think down from $350… and am I just tripping or did the price of the amps go up before the sale? I sware I was looking at them before and I don’t remember them being that expensive.. does anyone remember?

 

They were on sale when they came out then went to regular pricing after a while.

They're on sale now.

 

I should also mention that they do not get hot at all even at full tilt. I drove from NY to Pittsburgh 6 hours. The amps were under a cover with no air flow and were only slightly warm when I got home.

 

I should also mention that they do not get hot at all even at full tilt. I drove from NY to Pittsburgh 6 hours. The amps were under a cover with no air flow and were only slightly warm when I got home.

Good to know. I am debating swapping my PDX F4 and V9 for a pair of 75.2 and a 1500 but was wondering if they would get hot under the cover in my trunk. Not sure yet if I will make the switch or not, it's not a straight forward switch for many reasons, but at least it's good to know they won't overheat.

 

They are legit SQ for sure. I don't have experience with better amps except from the 90's.(Rockford Fosgate, PPI art series, Xtant, Kicker), to make any further comments. Not to start a debate about digital Vs. AB, but they sound better than any digital amps I've used recently which include Helix, NVX JAD, JL Audio VXi, Arc Audio X2. To be fair I have not done a back to back comparison either. Just going by memory. Also, Nick Apicella tuned my car, and he is a better tuner than I am. Also added a Helix Ultra at the same time. Lots of variables. So far no complaints.

 

Get yours while they last...

Sent from my SM-G965U using Tapatalk

 

Just got my SQL12 today. Placed it into a sealed box at 1cft (what I have available at the moment). Sounds great. Same output as my JL 12W6v3 in a ported box. Much more output than when I had my JL's in the same sealed box. Will listen to it for a couple of days and then switch it to the same ported box the JL is in and compare the sound. Powering it with a Arc Audio 1100.1 at 1 ohm. First impression is that it sounds great and is great bang for your buck. SQL=$284, JL=$700.